Simple type alias

Fixed dictionary type(FIXED_DICT)

Data structures can be used as a dictionary like Python, the engine can be identified in the storage and network transmission based on the definition.

The basic format:

<typename> FIXED_DICT
// (Optional implementation)
// Allows the user to re-define the data structure in memory in the form of existence,
// When the engine for data storage or network transmission of this data structure must be restored
<implementedBy> xxx.inst </implementedBy>
// This data structure member
<Properties>
// dictionary of key
<keyName>
// dictionary of value
<Type> typename </Type>
</keyName>
</Properties>
</typename>